proc: remove dead code (#2321)

pkg/proc/eval.go

@@ -36,8 +36,6 @@ type EvalScope struct {
 
 	frameOffset int64
 
-	aordr *dwarf.Reader // extra reader to load DW_AT_abstract_origin entries, do not initialize
-
 	// When the following pointer is not nil this EvalScope was created
 	// by CallFunction and the expression evaluation is executing on a
 	// different goroutine from the debugger's main goroutine.
@@ -558,14 +556,6 @@ func (scope *EvalScope) image() *Image {
 	return scope.BinInfo.funcToImage(scope.Fn)
 }
 
-// globalFor returns a global scope for 'image' with the register values of 'scope'.
-func (scope *EvalScope) globalFor(image *Image) *EvalScope {
-	r := *scope
-	r.Regs.StaticBase = image.StaticBase
-	r.Fn = &Function{cu: &compileUnit{image: image}}
-	return &r
-}
-
 // DwarfReader returns the DwarfReader containing the
 // Dwarf information for the target process.
 func (scope *EvalScope) DwarfReader() *reader.Reader {

pkg/proc/variables.go

@@ -24,9 +24,6 @@ const (
 
 	maxArrayStridePrefetch = 1024 // Maximum size of array stride for which we will prefetch the array contents
 
-	chanRecv = "chan receive"
-	chanSend = "chan send"
-
 	hashTophashEmptyZero = 0 // used by map reading code, indicates an empty cell
 	hashTophashEmptyOne  = 1 // used by map reading code, indicates an empty cell in Go 1.12 and later
 	hashMinTopHashGo111  = 4 // used by map reading code, indicates minimum value of tophash that isn't empty or evacuated, in Go1.11